def test_error_when_invalid_args_kwargs_combo_provided():
with pytest.raises(TypeError):
merge_args_and_kwargs(GENERATED_FUNCTION_ABI, (
1,
2,
), {
'a': 1,
'b': 2
})
def _set_function_info(self):
if not self.abi:
self.abi = find_matching_fn_abi(self.contract_abi,
self.function_identifier,
self.args, self.kwargs)
if self.function_identifier is FallbackFn:
self.selector = encode_hex(b'')
elif is_text(self.function_identifier):
self.selector = encode_hex(function_abi_to_4byte_selector(
self.abi))
else:
raise TypeError("Unsupported function identifier")
self.arguments = merge_args_and_kwargs(self.abi, self.args,
self.kwargs)
def _encode_data_in_transaction(self, *args, **kwargs):
constructor_abi = get_constructor_abi(self.abi)
if constructor_abi:
if not args:
args = tuple()
if not kwargs:
kwargs = {}
arguments = merge_args_and_kwargs(constructor_abi, args, kwargs)
data = add_0x_prefix(
encode_abi(self.web3,
constructor_abi,
arguments,
data=self.bytecode))
else:
data = to_hex(self.bytecode)
return data
def _encode_constructor_data(cls, args=None, kwargs=None):
constructor_abi = get_constructor_abi(cls.abi)
if constructor_abi:
if args is None:
args = tuple()
if kwargs is None:
kwargs = {}
arguments = merge_args_and_kwargs(constructor_abi, args, kwargs)
deploy_data = add_0x_prefix(
encode_abi(cls.web3,
constructor_abi,
arguments,
data=cls.bytecode))
else:
deploy_data = to_hex(cls.bytecode)
return deploy_data
def get_function_info(fn_name,
contract_abi=None,
fn_abi=None,
args=None,
kwargs=None):
if args is None:
args = tuple()
if kwargs is None:
kwargs = {}
if fn_abi is None:
fn_abi = find_matching_fn_abi(contract_abi, fn_name, args, kwargs)
fn_selector = encode_hex(function_abi_to_4byte_selector(fn_abi))
fn_arguments = merge_args_and_kwargs(fn_abi, args, kwargs)
_, aligned_fn_arguments = get_aligned_abi_inputs(fn_abi, fn_arguments)
return fn_abi, fn_selector, aligned_fn_arguments
def test_merging_of_args_and_kwargs_with_no_inputs():
actual = merge_args_and_kwargs(NO_INPUTS_FUNCTION_ABI, tuple(), {})
assert actual == tuple()
def test_merging_of_args_and_kwargs(args, kwargs, expected_args):
actual_args = merge_args_and_kwargs(FUNCTION_ABI, args, kwargs)
assert actual_args == expected_args
def test_kwargs_allowed_if_no_intersections_with_duplicate_input_names():
with pytest.raises(TypeError):
merge_args_and_kwargs(DUPLICATE_NAMES_FUNCTION_ABI, (1, ), {
'a': 2,
'b': 3
})
def test_args_allowed_when_duplicate_named_inputs():
actual = merge_args_and_kwargs(DUPLICATE_NAMES_FUNCTION_ABI, (1, 2, 3), {})
assert actual == (1, 2, 3)
def test_args_works_when_merging_with_unnamed_inputs():
actual = merge_args_and_kwargs(GENERATED_FUNCTION_ABI, (1, 2), {})
assert actual == (1, 2)
def test_kwargs_is_disallowed_when_merging_with_unnamed_inputs():
with pytest.raises(TypeError):
merge_args_and_kwargs(GENERATED_FUNCTION_ABI, tuple(), {
'x': 1,
'y': 2
})